1997/0327/pc/ns16552.h (diff list | history)

1995/0222/sys/src/9/pc/ns16552.h:15,21 – 1997/0327/sys/src/9/pc/ns16552.h:15,22 (short | long | prev | next)
SMP fixes XXX. Add ns16552special, uartclock. Use arch-specific modempower, serialport functions. Anonymize. rsc Fri Mar 4 12:44:25 2005
1994/0902		#define uartrdreg(u,r) inb((u)->port + r)
1994/1108		void ns16552setup(ulong, ulong, char*);
1994/0902
1997/0327		void ns16552special(int, int, Queue**, Queue**, int (*)(Queue*, int)); void uartclock(void);
1994/0902		/* * definition of an optional serial card */
1995/0222/sys/src/9/pc/ns16552.h:32,42 – 1997/0327/sys/src/9/pc/ns16552.h:33,43
1994/0902		{ switch(dev){ case Modem: if(modem(onoff) < 0)
1997/0327		if((*arch->modempower)(onoff) < 0)
1994/0902		print("can't turn %s modem speaker\n", onoff?"on":"off"); break; case Serial: if(serial(onoff) < 0)
1997/0327		if((*arch->serialpower)(onoff) < 0)
1994/0902		print("can't turn %s serial port power\n", onoff?"on":"off"); break; }
1995/0222/sys/src/9/pc/ns16552.h:46,55 – 1997/0327/sys/src/9/pc/ns16552.h:47,54
1994/0902		* handle an interrupt to a single uart */ static void ns16552intrx(Ureg *ur, void *arg)
1997/0327		ns16552intrx(Ureg*, void* arg)
1994/0902		{ USED(ur);                  ns16552intr((ulong)arg); }
1995/0222/sys/src/9/pc/ns16552.h:58,70 – 1997/0327/sys/src/9/pc/ns16552.h:57,68
1994/0902		* tells which of 8 devices interrupted. */ static void mp008intr(Ureg *ur, void *arg)
1997/0327		mp008intr(Ureg* ureg, void* arg)
1994/0902		{ int i, loops; uchar n; Scard *mp; USED(ur); mp = arg;
1994/1006		for(loops = 0; loops < 1024; loops++){
1994/0902		n = ~inb(mp->mem);
1995/0222/sys/src/9/pc/ns16552.h:72,78 – 1997/0327/sys/src/9/pc/ns16552.h:70,76
1994/0902		return; for(i = 0; n; i++){ if(n & 1)
1994/1006		ns16552intrx(ur, (void*)(mp->first+i));
1997/0327		ns16552intrx(ureg, (void*)(mp->first+i));
1994/0902		n >>= 1; } }
1995/0222/sys/src/9/pc/ns16552.h:85,91 – 1997/0327/sys/src/9/pc/ns16552.h:83,89
1994/0902		ns16552install(void) {
1994/1118		int i, j, port, nscard;
1994/1007		char *p;
1997/0327		char *p, *q;
1994/0902		Scard *sc;
1994/1108		char name[NAMELEN];
1994/1007		static int already;
1995/0222/sys/src/9/pc/ns16552.h:96,109 – 1997/0327/sys/src/9/pc/ns16552.h:94,110
1994/1007
1994/0902		/* first two ports are always there and always the normal frequency */
1994/1108		ns16552setup(0x3F8, UartFREQ, "eia0");
1994/0902		setvec(Uart0vec, ns16552intrx, (void*)0);
1997/0327		intrenable(VectorUART0, ns16552intrx, (void*)0, BUSUNKNOWN);
1994/1108		ns16552setup(0x2F8, UartFREQ, "eia1");
1994/0902		setvec(Uart1vec, ns16552intrx, (void*)1);
1997/0327		intrenable(VectorUART1, ns16552intrx, (void*)1, BUSUNKNOWN); addclock0link(uartclock);
1994/1007		/* set up a serial console */ p = getconf("console"); if(p) ns16552special(atoi(p), 9600, &kbdq, &printq, kbdcr2nl);
1997/0327		if(p = getconf("console")){ port = strtol(p, &q, 0); if(p != q && (port == 0 || port == 1)) ns16552special(port, 9600, &kbdq, &printq, kbdcr2nl); }
1994/0902		/* the rest come out of plan9.ini */
1994/1118		nscard = 0;
1995/0222/sys/src/9/pc/ns16552.h:128,134 – 1997/0327/sys/src/9/pc/ns16552.h:129,135
1994/0902		if(sc->freq == 0) sc->freq = UartFREQ; sc->first = nuart; setvec(Int0vec+sc->irq, mp008intr, sc);
1997/0327		intrenable(VectorPIC+sc->irq, mp008intr, sc, BUSUNKNOWN);
1994/0902		port = sc->port; for(j=0; j < sc->size; j++){
1994/1118		sprint(name, "eia%d%2.2d", nscard, j);
1995/0222/sys/src/9/pc/ns16552.h:145,151 – 1997/0327/sys/src/9/pc/ns16552.h:146,152
1994/1106		sc->freq = UartFREQ;
1994/1118		sprint(name, "eia%d00", nscard);
1994/1108		ns16552setup(sc->port, sc->freq, name);
1994/0902		setvec(Int0vec+sc->irq, ns16552intrx, (void*)(nuart-1));
1997/0327		intrenable(VectorPIC+sc->irq, ns16552intrx, (void*)(nuart-1), BUSUNKNOWN);
1994/0902		}
1994/1118		nscard++;
1994/0902		}